Carlos Gomez Diaz defeated Eduardo Nicolas 7-6 6-4 in the Croatia 1 Masters 4 semi-final on clay. The upset overturned the form book — Eduardo Nicolas came in leading the head-to-head 1–0, but Carlos Gomez Diaz had been the form player, winning 3 of their last 5 on clay. Carlos Gomez Diaz claimed a first win over Eduardo Nicolas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-02-26 | Spain 3 Masters 4 | R16 | clay | Eduardo Nicolas | 6-2 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.